Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Archery Accuracy0.018711343425%7.1Harden
Average Character0.0054127169441%1.9Easyen
Black and White0.1359239316843%5.0Mediumen
Circle Bounce0.0020020910852%4.9Mediumen
Diagonals0.0018532026733%6.6Harden
Dorm Room Divide0.03580151018812%6.8Harden
Double Password0.0054064236358%1.6Easyen
Fail Them All!0.0089944710724%8.1Harden
Hopscotch 5000.1187863313421%7.4Harden
Overdraft0.0052881118441%2.1Easyen
Problem Set Construction0.01940743953%6.9Harden
Reversibly Cyclic Strings0.00565528944%3.3Mediumen
Rise and Fall0.0088105625124%4.7Mediumen
Scaling Recipe0.005184784946%1.9Easyen
Shortest Missing Subsequences0.0939433610932%5.8Harden
Square Bounce0.005031645433%6.2Harden
Tetris Generation0.0090119729124%6.0Harden
Tournament Seeding0.0322050021944%4.0Mediumen
Tree Hopping0.0289396327929%6.3Harden
Who Goes There?0.00119121239032%4.1Mediumen
XOR Island0.002912729535%7.3Harden